The effectiveness of adjustable oral appliance for older adult patients with obstructive sleep apnea syndrome - Lu, Rong-Jian; Tian, Ning; Wang, Jia-Zhu; Zou, Xuan; Wang, Jing-Jing; Zhang, Min; Bai, Chang-Qing; Yu, Kai-Tao (Annals of Palliative Medicine, 2020)